Rotary oil well drilling apparatus



June 15, 1937. E M LEWlS 2,084,096

ROTARY OIL WELL DRILLING APPARATUS Filed March 4, 1937 2 Sheets-Shea?l 2 l f5 #pag.2

y Patented `lune 15, 1937 T ori-cs Romer on. LL n Everett Marion lLewis,

Application Mana t, mi, s@ No. 128,999

d Cla.

'I'his invention relates to self-supporting, selfguiding rotary oil well drilling, apparatus and "particularly to that type embodying two rotary drill bits, two rotary drill stems therefor and an operating block for operating the said rotary drill bits and stems, a-gatherer, container and retainer for drill bit cuttings, a propelling shaft therefor and differential gears for operating the said shaft, and electrically driven motors for operating the aforesaid mechanism, however, while the present invention is embodied in an apparatus of this type, there are certain features which may of course be utilized in rotary oil well drilling apparatus different from the specic form shown, and other means of power such as steam, hydraulic or compressed air pressure may be utilized in actuating and rotating the drill bits and other mechanism in connection with the operation of the aforesaid rotary oil well drilling apparatus.

Generally stated the primary object of my invention is to provide a self-supporting, self-guiding rotary oil well drilling apparatus the actuating and operating power for which is propelled within the said apparatus itself and to provide in such an apparatus a gathering and retaining device for gathering and retaining drill bit cuttings; an apparatus of the ltype stated eliminates the necessity of a connected line of drill stems extending from top to bottom of drill hole. The gathering and retaining device for drill bit cuttings modiiies the dependency on water circulated under pressure as a means for removing drill bit cuttings; thus the cost of drill hole is reduced as compared with former methods of rotary oil well sr drilling; the reduction in cost being brought about o by reduction in time and labor required in drilling.

Stated more in detail, one object of the present invention is to provide a novel rotary oil well drilling apparatus ,composed of parts so constructed, arranged and assembled that the apparatus is adaptable in drilling oil Wells at various. depths and especially adaptable in drilling oil wells at unusually deep depths and to provide in such an 5 apparatus a novel gathering and retaining device for gathering and retaining drill bit cuttings, and

to provide in such an apparatus a series of electrically driven motors for the operation of rotary drill bits and other operating mechanism in con- 50 nection with the said rotary oil Well drilling apparatus.

With the foregoing and other objects in view,

the 'nature of whichwill become apparent as the .description proceeds, the invention consists in the 55 novel construction, combination and arrangement of parts hereinafter fully described and claimed and illustrated in the accompanying drawings, wherein:

Figure 1 is a sectional view taken on a. plane extending vertically and centrally through oil well drilling apparatus constructed in accordance with my invention.

Figure la is a continuation of Figure l showingy the lower portion of the apparatus.

Figure 2 is a vertical sectional view of rotary operating block.

Figure 3 is a vertical sectional View of external rotary drill stem.

Figure 4 is a vertical sectional view of external rotary drill bit. 15

Figure 5 is a vertical sectional view of internal rotary drill stem.

Figure 6 is a. plan view of differential gears.

Figure 7 is a sectional view taken on a plane extending vertically and centrally through housing and differential gears which are operated in connection with reverse rotation of gathering and retaining device for gathering and retaining drill y bit cuttings.

Figure 8 is a vertical sectional View of container for drill bit cuttings. Figure 9 is a vertical sectional view of shaft and spirally constructed auger like gathering and retaining device for drill bit cuttings.

Figure `10 is a vertical view of flexible hose partly 30 in section' showing the arrangement of electric service wires and threaded connection tip the end of which has a slotted connection means.

Figure 11 is a vertical view of flexible hose and sectional View of threaded connection tip attached 35 `thereto the end of which has a tongued connection means.

Corresponding and like parts are referred to in the following description and designated ln the several views of the accompanying drawings by similar reference numbers.

The rotary oil well drilling apparatus herein illustrated, comprises tubular case I which is of upright cylindrical formation made of metal, at the top of which there is 'provided an inwardly extending circular'iiange 2 which is brazed or otherwise attached thereto; the said flange is provided with threaded studbolts 3 positioned circularly around its marginalportion, the said stud bolts cooperate with holes in-marginal portion of lid t. In assembling, the aforesaid stud bolts are passed through their respective holes in lid 4 and are held in position by nuts 5, this procedure inassembling attaches lid 4 in place on top of tubular case I where it is properly gasketed.

The inside of tubular case I is provided with inwardly extending lugs 6 and 1 which support tubular housing 8 together with electric motors 8 and tubular spindle I0 contained therein. Tubular case I incases tubular housing 8, ball and socket tube joint II, a portion of flexible hose I2 and a portion of metallic tubing I3. The bottom end portion of the aforesaid tubular case I serves as a housing and guidefor upper portion of rotary operating block I4. Lid 4 of tubular case I is provided with a circular opening in its central portion to accommodate the installation of flexible hose I2 and electric service wires I5 and I6 incased therein. Positioned circularly around the aforesaid openingn lid 4 there are provided threaded holes to accommodate the installation of stud bolts I1. Lid 4 supports tubular housing I8. Tubular housing I8 is of upright cylindrical formation made of metal, the base of which is provided with an outwardly extending circular flange I8 which is brazed or otherwise attached thereto; the said flange is provided with holes positioned circularly around its marginal portion to accommodate the installation of threaded stud bolts I1. In assembling, threaded stud bolts I1 are passed through holes provided for them in flange I8 and are screwed in threaded holes provided forl them in lid 4, this procedure attaches tubular housing I8 in place on top of lid 4 where it is properly gasketed; the aforesaid tubular housing I8 houses a portion of flexible hose I2l and electric service wires I5 and I6 incased therein, the surface of the said housing serves as a shaft where fiat circular `weights are attached when' it becomes necessary to add additional weight to the drilling apparatus due to any particularly hard formation encountered in drilling. The top portion of tubular housing I8 is provided with threaded connection tip 28 to accommodate the attachment of threaded hose union 2|. Tu-

bular housing I8 is provided with metallic rings- 22 on the surface of its top portion for the attachment of a cable for use in lowering and removing the aforesaid rotary oil well drilling apparatus into and out of drilled hole.

Tubular housing 8 is of upright cylindrical formation made of metal,at the bottom and top of which there is provided outwardly extending lugs 23 and 24 which are brazed or otherwise attached thereto; the said lug's extend horizontally for a short distance, are spaced a few inches apart and are positioned circularly around the the said tubular housing. At the bottom of the aforesaid housing lugs 23 are provided with holes to accommodate bolts 25, the said holes are positioned to cooperate with holes in outwardly extending lugs 26 of lid 21 and with holes in in'- wardly extending lugs 6 of tubular case I. At thegtop of the aforesaid housing lugs 24 are provided with stud bolts 28 positioned to cooperate with-holes in outwardly extending lugs 28 of lid 30 and with holes in inwardly extending lugs 1 of tubular case I. 8 together with electric motors 8 contained therein is inserted in tubular case I to a point where the aforesaid lugs of tubular housing 8 and the inwardly extending lugs of tubularV case I and the outwardly extending lugs of lids 21 and 38 contact one another in their respective locations and the p holes thereof cooperate with one another. At the bottom of .tubular housing 8 bolts 25 are passed through holes in lugs 23 of the said housing and through holes in lugs 26 of lid 21 and` through holes in lugs 6 of tubular case I where they areheld in position by nllt 3|; this pro- In assembling, tubular housing i cedure attaches lid 21 in place covering bottom of tubular housing 8 where it is properly 'gasketed, and attaches bottom portion of tubular housing 8 inside of tubular case I. At the top of tubular housing 8 stud bolts 28 are passed through holes in lugs 28 of lid 30 and through holes in lugs 1 of tubular case I where they are held in position by nuts 32; this procedure attaches lid 30 in place covering top of tubular housing 8 where it is properly gasketed and attaches top portion of tubular housing 8 inside of tubular case I. Lids 21 and 30 are provided with circular openings in their central portion in which tubular spindle I8 of electric motors 8 is journaled; lid 30 is provided with holes through which electric service wires I5 and I6 are passed, they are attached to electric motors 8. The aforesaid tubu lar housing 8 houses electric motors 8, together with the greater portion of tubular spindle I8 thereof.

Electric motors 8 incased in tubular housing 8 are supplied with electric current from a source of supply located and situated above the top of drill hole by way of service wires leading from sourceofV electric current supply into top section of flexible hose I2 where the said wires are connected with service wires I5 and I6 hereinafter described. The supply of Aelectric current to the said electric motors is regulated and controlled by an electric switch or other suitable electric current controlling device located and situated above the top of drill hole. The aforesaid electric motors when properly supplied with electric current constitute a means for actuating and operating the rotary mechanism of the rotary oil well drilling apparatus herein described and claimed; 33

-designates the stator and 34 the rotor thereof.

rotors thereof are properly spaced and attached on tubular spindle I0. Tubular spindle I0 is journaled in lids 21 and 38 of tubular housing 8, bearings 38 and 38 are provided with oil or grease cups, not shown, the lower end of shaft 48 of tubular spindle I0 is threaded externally to accommodate its attachment to threaded connection 4I of rotary operating block I4. In operation the aforesaid electric motorsactuate and rotate shaft 40 and rotary operating block I4 attached thereto.

Flexible hose I2 is constructed of the usual ma,- terial in use in the construction of flexible rotary oil well drilling hose. Electric service wires I5 and I6 incased in the said hosecomprise a series' of insulated wires in pairs, .electric current enters the aforesaid electric motors 'by way of electric other by rubber or other suitable insulating material; they are installed between the layers of the said flexible hose and are wrapped spirally from end to end of the said hose. The said flexible hose is provided in sections of suitable lengths for satisfactory rotary oil well drilling operation. One end of each section of the said hose is proslot.

vided with threaded connection tip t2 and the other end of each section of the said hose is provided with threaded connection tip 43, except the lower end portion of the section of the said hose which is incased in tubular case I is provided with a threaded metallic connection tip to accom modate its attachment to threaded upper connection means of ball and socket tube joint I I. Aliillectric service wires I and I6 leave the portion of flexible hose which is incased in tubular case I at a point above the said `threaded metallic connection tip thereof and are incased in tubular" case I to a point where they enter electric motors d through openings provided for them in lid 30 of tubular housing 8. The end of threaded connection tip 42 is provided with two circular slots, one of which is positioned internal to the other, at the bottom of each of the said circular slots there is fitted a fiat circular metallic ring; rubber or other suitable insulating material is installed between the said slots. Electric service wires I5 are attached to the circular metallic ring in the external slot and electric service wires I6 are at' tached to the circular metallic ring in the internal The end of threaded connection tip 43 is provided with two circular metallic tongues, one of which is positioned internal to the other, the ends of which are ush with one another; rubber or other suitable insulating material is installed between the said tongues. Electric service wires I5 are attached to the base of the external circular metallic tongue and electric service wires IS are attached to the base of the internal circular metallic tongue., ,Yin assembling, sections of the aforesaid flexible hose; tongues of the end of connection tip I3 are inserted in slots provided for them in the end of connection tip 2 where the aforesaid connection tips 42 and 63 are held in place by a suitable threaded hose union; when thus assembled, there is produced a continuous connection of both electric service wires I5 and I 6. The bottom portion of drill hole is supplied with water which is pumped from a source of supply above the top of drill hole through flexible hose l2 and metallic tubing I3 connected therewith by connection means of ball and socket tube joint II; sediment,drill bit cuttings and other substances may be pumped from bottom portion of drill hole through the aforesaid metallic tubing and flexible hose. Y

Metallic tubing I3 the surface of the upper end portion of which is provided with threads to accommodate the attachment of threaded ball and socket tube joint-connection, extends from lower end of internal rotary drill stem 44 to ball and socket tube joint II with which it is connected; the lower end portion of the said metallic tubing is, incased within internal rotary drill stem 44 and the greater portion of the upper end of the said metallic tubing is incased within tubular spindle Id of electric motors 9; oil or grease cups, not shown, are provided at the bottom of bearing 38 and at the top of bearing 3S for lu.- brication of the said metallic tubing. I

Ball and socket tube joint II, the lower connection means of which is provided with threads internally to accommodate the attachment of threaded upper end portion of metallic tubing I3 and the upper connection means o! which is provided with threads internally to accommodate the attachment of threaded metallic connection of flexible hose I2; the said ball and socket tube joint eliminates rotation and twistanism is in operation.

Operating block I4 is of oblong circular formation made of metal; it is provided with a central opening 45 which is threaded to accommodate the attachment of threaded lower end portion of shaft 40 of tubular spindle I0 of electric motors 9 and threaded upper end portion of external rotary drill stem 46 and threaded upper end portion of internal rotary drill stem 44. The lower portion 41 of the said operating block extends outwardly and circularly; the top of the outwardly and circularly extending portion 41 is provided with a circular groove or slot 48 which accommodates the installation and operation of roller bearings G9 on which the bottom end of tubular case I rests. The upper portion of the aforesaid operating block is made to it within lower end portion of tubular case I where it is properly lubricated by oil or grease cups, not shown, embedded in tubular case I. In assembling, the aforesaid operating block is inserted in lower end portion of tubular case I and is screwed on threaded, lower end portion of shaft 4o of tubular spindle I0 of electric motors 9 to a point where roller bearings 49 installed in groove or slot t8 thereof contact lower end of tubular case I; this procedure attaches the said operating block in place, the lower portion of which is flush with the surface of. tubular case I and the upper portion of which is incased within the said tubular case. When the aforesaid operating block is actuated and rotated as heretofore stat-ed it rotates both the external and internalrotary drill stems connected therewith.

External rotary drill stem 46 is of upright cylindr'cal formation made of metal, the lower end portion 50 of which is threaded internally to accommodate the attachment of threaded connection tip 5I of external rotary drill bit cutting head 52; the upper end portion of the said exto accommodate the passage of internal rotary drill stem 44. In assembling, portion 54 of external rotary drill stem 46 is screwed in portion 55 of operating block I to a point where inwardly exactuatingl and rotating the aforesaid operating A block.

Externalrotary drill bit cutting head 52is of upright cylindricalformation made of metal, the

lower end of which is provided with cutting teeth 51 which are properly spaced and positioned circularly thereof. The external upper portion of the said drill bit cutting head is threaded to accommodate its attachment to threaded lower end portion of external rotary drill stem 46. The aforesaid external rotary. drill bit cutting' head herein illustrated is intended for use in drilling soft formations; the same type gf drill v bit head is provided withroller bearing rock bits instead of cutting teeth 51 for use in drilling hard formations. The two types Jof external rotary drill bit cutting heads herein described aremade to conform with and are interchangeable on extern'al rotary drill stem 45. 'I'he aforesaid drill bits are not intended for use as reamer or core bits; in operation they cooperate with internal rotary drill bits hereinafter described and are used purely for drilling oil wells. Internal rotary drill stem 44 ls of upright cylindrical formation made of metal, the surface of the lower end portion 58 is threaded to accommodate the attachment of threaded connection 58 of internal rotary drill bit cutting head 60. The surface of the upper end portion 8| of the aforesaid internal rotary drill stem is threaded to accommodate its attachment to threaded central opening 45 of operating block I4. In assembling, threaded portion 6I of the said internal rotary drill stem is screwed in threaded central opening 45 of operating block I4 to a point where upper end of the said drill stem contacts lower end of shaft of tubular spindle I0 of electric motors 9 already screwed in the upper half of threaded central opening of operating block I4.

Internal rotary drill bit cutting head 60 is of upright formation made of metal, the cutting "blades 62 thereof are of angular formation and are provided with cutting edge 53; the top portion 64 of the said drill bit cutting head is pro-I vided with an outwardly extending circular flange on top of which roller bearings 65 rotate. The aforesaid internal rotary drill bit cutting head is provided with an opening 61; there are two of these openings one of which is not shown, they are situated one on either side of the said drill bit cutting head and connect with opening in lower end of metallic tubing I3 and permit the flow of water pumped out around drill bits, they also permit the pumping of sediment and other substances from drill hole through metallic tubing I3 and flexible hose I2 connectedtherewith. 'I'he central portion of the top of the aforesaid internal rotary drill bit cutting head is provided with a threaded opening to accommodate the attachment of threaded lower end portion 58 of internal rotary drill stem 44. The aforesaid internal rotary drill bit cutting head herein illustrated is intended for use in drilling soft formations; the same type of drill bit head is provided with roller bearing rock bits instead'of cutting blades 62 for use in drilling not shown, for drillingl soft-formations or reversible expansion roller bearing rock bits, not shown, for drilling hard formations; which are operated' by reversible expansion gears, not shown, connected with reversible extension shaft, not shown, attached to lower end of internal rotary drill stem 44; the drilled hole can be cased with the usual standard oil well casing to within a short distance of the bottom of drilled hole and the rotary oil well drilling apparatus hereiny described, minus the external rotaryrdrill bit cutting head 52 can be passed in or out of drill hole and casing through opening from end to end of the said casing. In operation, the aforesaid rotary oil well drilling apparatus together with either of the aforesaid reversible expansion drill bits attached to internal rotary drill stem 44 in a. retracted position is lowered through opening in casing in drilledhole until the said drill bit rests on the bottom of rdrill hole and the upper portion of the said rotaryoil well drilling apparatus is contained within the aforesaid oil well casing. Electric motors-, are then" operated producing clockwise rotatiombf internal rotary drill stem 44 and reversible extension shaft thereof which operates reversible expansion gears and expands reversible expansion drill bit connected therewith. When the aforesaid drill bit is at full expansion the extension shaft of internal rotary drill stem 44 becomes disengaged from the reversible expansion gears and further clockwise rotation of internal rotary drill stem 44 screws threaded lower vend portion 58 into threaded connection 59 of internal rotary drill bit head where the drill bit and other mechanism in connection therewith is in position for drilling operation. When it becomes necessary to remove f the aforesaid rotary oil well drilling apparatus from the drilled hole, electric motors 9 are operated in reverse producing counterclockwise rotation of internal rotary drill stem 44 which unscrews the said drill stem from threaded connection 58 of internal rotary drill bit head,v further either of the aforesaidreversible expansion drillbits are used, operating block I4 is provided with suitable catchplas, not shown, which cooperate with suitable dogs, not shown, provided on upper portion of internal rotary drill stem 44 and on lower portion of shaft 40 to prevent unscrewingv of the said internal rotary drill stem and shaft 40 when electric motorsV 9 are operated in reverse. 'I'he top portion of the aforesaid internal reversible expansion drill bit head is provided with suitable catchplates, not shown, and the lower end portion of the aforesaid internal rotary drill stem 44 is provided with suitable dogs, not shown, to prevent too tight a union when the lower threaded end portion of internal rotary drill stem 44 is screwed into threaded connection 59 of internal rotary drill bit head.

Housing 68 for differential gears 69 is of upright cylindrical formation made of metal, at the top and bottom of whichthereis provided inwardly extending circular flanges 10 and 1I which are brazed or otherwise attached thereto; the said flanges are provided with threaded stud bolts 12 `and 13 positioned circularly around marginal portion thereof; they cooperate with openings inmarglnal portion of lids 14 and 15. In assembling, the aforesaid stud bolts are passed through their respective openings in lids 14 and 'I5 where they are held in position by nuts 16 and 11, this procedure attaches lid 14 in place on bottom of the aforesaid housing and attaches lid 15 in place on top of the aforesaid housing. The central portion of lids 14 and 15 are provided with a circular opening in which internal rotary drill stem 44 is journaled. The aforesaid housing 88 is provided with gear wheel 18 which is brazed or otherwise attached inside thereof; the said gearwheel cooperates with gear wheels 19 and 80, the aforesaid gear wheels constitute a universal gear; gear wheel 19 is provided with a spindle or vvaxle .I which is journaled in 1ids 14 and 15, gear wheel 8|) is attached to internal rotary drill stem 44 by threaded stud bolts, not shown; actuation and rotation of internal .rotary drill stem 44 rotates`-the aforesaid differential gear thereby producing reverse rotation of housing 68. The aforesaid gear wheel 60 rotates on roller bearings 62 and 83 provided inside of housing 68 and positioned around internal rotary drill stem44. 'Ihe outer marginal portion of lid 14 of the aforesaid housing is provided with downwardly extending lugs 84 positioned circularly thereof, the said llugs cooperate and interlock with vertically extending lugs 85 of lid 86 of container 81 for drill bit cuttings.- Container 81 for drill bit cuttings is of upright cylindrical formation made of metal, the bottom of which is open; the topportion of which is provided with an inwardly extending circular ange 88 which is brazed or otherwise attached thereto, the said flange is provided with threaded stud bolts 89 positioned circularly thereof, they are positioned to cooperate with holes in marginal portion of lid 86. In assembling, the aforesaid stud bolts are passed through their respective openings in lid 86 where they are held in position by nuts 96, this procedure attaches the said lid in place on top of the aforesaid container. The central portion of lid 86 is provided with a circular opening to accommodate the passage and operation of internal rotary drill stem 4d. The outer marginal portion of lid 86 is provided with vertically extending lugsl 85 positionedcircularly thereof, the said lugs cooperate and interlock with lugs 8&1 of lower lid 1.4 of housing 68. 'I'he internal inner marginal portion of lid 86 is provided with downwardly extending lugs 9i positioned circularly thereof, the said lugs cooperate and interlock with vertically extending lugs 92 of top portion of cylindrical shaft 93 of gathering and retaining device 94.

Gathering and retaining device Qt for gathering and retaining drill bit cuttings is made of metal, the spirally constructed auger like worm 95 is brazed or otherwise attached to the surface of the lower portion of cylindrical shaft 93. bottom and top of the aforesaid cylindrical shaft is pen to accommodate the passage and operation of internal rotary drill stem 44. The top portion of cylindrical shaft 93 is provided with vertically extending lugs 92 positioned circularly thereof, the said lugs cooperate and interlock with downwardly extending lugs 9| of lid 86. The bottom end of cylindrical shaft 93 is provided with an outwardly extending circular flange 96 which is brazed or otherwise attached thereto. When the mechanism of the aforesaid gathering and retaining device is assembled the` outwardly extending circular flange 96 of cylindrical shaft 93 rotates on roller bearings 66k which are conpassed through central opening in gear wheel 80 to a point near the junction of the middle and upper third of the said internal rotary drill stem `where the said gear wheel 86 is attached to the shaft thereof by threaded stud bolts or other suitable means of attachment; the lower end of the aforesaid internal rotary drill stem is next passed through opening provided for it in central portion of lower lid 14 of housing 68 to a point where gear wheels 18 and 19 cooperate with gear wheel The.

8l; the upper end portion of the said drill stern is next passed through opening provided -for it..

tending lugs 84 of lower lid 14 of housing 68. The lower end of the said internal rotary drill stem is next passed through cylindrical shaft 93 of gathering and retaining device 94 to a point Where vertically extending lugs 92 of the top portion of the said shaft cooperate and interlock with downwardly extending lugs 9i of lid 86 of container 81. Threaded roller bearing container 91 is next screwed on lower threadedend portion of internal rotary drill stem 441 where it retains the aforesaid gathering and retaining device in position for use. Internal rotary drill bit cutting head 60 is next screwed on lower threaded end portion of internal rotary drill stem 44 to a point where outwardly extending circular flange 65 thereof contacts roller bearings 66 contained in roller bearing container 91. This procedure places the aforesaid mechanism in position for use.

` to, means about the lower end portion of the internal rotary drill stem vfor detachably securing a roller bearing container thereon, ,means about the upper end portion of the said drill stems for detachably securing the drill stems to a rotary operating block, a gatherer, retainer and container for gathering and'retaining drill bit cuttings, a rotary operating block, means in the internal lower portion of the operating block for detachably securing external rotary drill stem thereto, means in the internal median portion of the operating block for detachably securing intel-nal rotary drill stem thereto, means in the upper internal median portion of the operating block for detachably securing lower end portion 'of a shaft thereto, means in the top of the outwardly extending portion of the said operating block for the installation of roller bearings, a case incasing a rotary means the actuating power for which is propelled within the drilling apparatus, a rotary means incased within the case the actuating power for which is propelled therein, means for propelling power within the drilling apparatus for the actuation and rotation of the rotary mechanism thereof, omeans within the lower end portion of the case for housing and guiding the upper portion of a rotary operating block, a lid covering the top of the case. a housing within the case,^ means attached to the case internally thereof for supporting the housing, means attached to the housing forl supporting the housing on the supporting means therefor attached internally to the case, means for detachably securing the supporting means of the housing to the supporting means therefor attached internally to the case, two lids for the said housing one covering the bottom and the other covering the top thereof, means for detachablysecuring the said lids in their respective locations, a tubular spindle centrally and longitudinally of the-said housing journaled in the lids of the housing, the extended lower end shaft portion of the said spindle for detachably securing a rotary operating block thereto, means for detachably securing the shaft of the said tubular spindle to a rotary operating block, means within the said lhousing for rotating the said spindle and shaft thereof together with the rotaryoperating block detachably vsecured to the latter, a housing mounted on the lid of the case, means for detachably securing the bottom end of the housing to the lid of the case, two rings attached on the surface of the said housing near the top thereof, means for lowering and removing the drilling apparatus into and out ofdrilled hole, a connection means about the top of the said' housing for detachably securing a hose union thereon, -a hose union detachably secured on the connection means about the top of the housing for detachably securing the connection means of a hose therewith, means for detachably securing the said housing with a hose, a section of hose or tubing the upper portion of which is housed within the said housing, means for conveying power through the said section of hose or tubing into the case of the rotary oil well drilling apparatus for actuation and rotation of the rotary mechanism of the said drilling apparatus, a connection means about the lower end of the said hose or tubing for connecting with the connection means of a ball and socket tube joint, a connection means at the top of the said section of hose or tubing for connecting with connection means of the end of a hose or tubing, means within the case for conveying power to the rotary mechanism of the said drilling apparatus from lower portion of hose or tubing incased therein, a ball and socket tube joint, a connection means therefor by which the said tube joint is connected above with the connection means of the hose or tubing incased within the case, a connection means for the said tube joint by which the latter is connected below with the connection means of a tube, a tube extending from lower end portion of the internal rotary drill stem to connection means of ball and socket tube joint, a connectionl means about the top of the said tube for connecting the tube with lower connection means of the said ball and socket tube joint, means for conveying water and other substances into and from drill hole.

2. In a rotary oil well drilling apparatus of the type specified, a rotary mechanism therefor, comprising two rotary drill stems one of which is contained within the other, means about the lower end portion of the saidrdrill stems for detachably .securing rotary drill'bit heads thereto, means about the lower end portion of the internal rotary drill stem for detachably securing a roller bearing container thereon, means about the upper end portion of 4the said drill stems for detachably securing the drill stems to a rotary operating block, an auger like gatherer and retainer for gathering and retaining drill bit cuttings, a rotary shaft for the gatherer and retainer and a flange attached about the lower end portion of the said shaft for supporting the shaft on roller bearings, means about the top of the said shaft for detachably securing the latter to lid of container for drill bit cuttings, a container for drill bit cuttings, a lid covering the top of the saidl container, means for detachably securing the lid to the container, means on the bottom side of the said lid for detachably securing the latter to a rotary shaft, means about the top of the saldlid for detachably securing the latter to lower lid of a housing, a housing housing and containing a mechanism actuation and rotation of which rotates the said housing the container the gatherer and retainer for gathering and retaining drill bit 5 cuttings, two lids for the said housing one covering the bottom and the other covering the top thereof, means for detachably securing the said lids in their respective locations, a mechanism housed and contained within the said housing for 10 rotation thereof, means for detachably securing the said mechanism to and in connection with internal rotary drill stem, means for the installation of roller bearings within the said housing about the internal rotary drill stem above and 15 below the point where the said mechanism is detachably secured to and in connection with the said drill stem, a rotary operating block, means in the lower portion of the operating block for detachably securing external rotary drill stem 20 thereto, means in the median portion of the operating block for detachably securing internal rotary drill stem thereto,v means in the upper median portion of the operating block for detachably securing the lower end portion of a `25 shaft thereto, means about the top of the outwardly extending portion of the said operating block for theinstallation of roller bearings, a case, a rotary means incased within the case for rotating the rotary drilling mechanism of 30 the apparatus the actuating power for which is propelled within the said rotary oil well drilling apparatus, a rotary means incased within the case the actuating power for which is propelled therein, a housing within the case, means at- 23 tached to the case internally thereof for supporting the housing, means attached to the housing for supporting the latter on the -supporting means therefor attached internally to the case, means for detachably securing the supporting means of n the housing to the supporting means therefor attached internally to the case, two lids for the said housing one covering the bottom and the other covering the top thereof, means for detachably securing the said lids in their respective lo- 45 cations, a driving motor incased in a housing for rotating the drilling mechanism of the said drilling apparatus, means for the installation and operation of the said driving motor, a tubular spindle for the driving motor centrally and lono gitudinally of the said housing journaled in the lids of the housing, an extended lower end shaft portion of the said spindle for detachably securing a rotary operating block thereto, means about the lower end portion of the said shaft for detachably securing the latter to a rotary operating block, means within the lower end portion of the case for housing and guiding the upper portion ofa rotary operating block, a lid covering the top of the case, means for detachably 60 securing the lid to the case, a housing mounted on the lid of the case, means for detachably securing-the bottom end of the housing to the lid of the case, two rings attached on the surface of the said housing near the top thereof, means C5 means for conveying power through the said section of hose or tubing into the case of the rotary oil well drilling apparatus for actuation and rotation of the rotary mechanism contained therein, a connection means about the lower end of the said hose or tubing for connecting with the connection means of a ball and socket tube joint, a connection means at the top of the said section of hose or tubing for connecting with connection means of the end of a hose or tubing, means within the case for conveying power from the portion of hose or tubing incased within the case to the rotary mechanism of the said drilling ap-l paratus, a ball and socket tube joint, a connection means therefor by which the upper portion of the saidl tube joint is connected with the connection means of the hose or tubing incased within the case, a connection means for the said tube joint by which the latter is connected below with the connection means of a tube, a tube extending from lower end portion of the internal rotary drill stem to connection means o ball and socket tube joint, a connection means Yabout the top of the said tube for connecting the tube with lower connection means of the said ball and socket tube joint, means for conveying water and other substances into and from drill hole.

3. In a rotary oil well drilling apparatus of the type specified, a rotary mechanism therefor, comprising two rotary drill stems one of which is contained within the other, means about the lower end portion of the said drill stems for detachably seeming rotary drill bit heads thereto, means about the lower end portion of the internal rotary drill stem for detachably securing e. roller bearing container thereon, means about the upper end portion of the said drill stems for detachably securing the drill stems to a rotary operating block, an auger like gatherer and retainer for gathering and retaining drill bit cuttings, a rotary shaft for the gatherer and retainer and a ange attached about the lower end portion of the said shaft for supporting the shaft on roller bearings, means about the top of the said shaft for detachably securing the latter to lid of container for drill bit cuttings, a container for drill bit cuttings, a lid covering the top of the said container, means for detachably securing the lid to the container, means on the bottom side of the said lid for detachably securing the latter to a rotary shaft, means about the top of the said lid for detachably securing the latter to lower lid of a housing, a housing housing and containing a mechanism actuation-and rotation of which rotates the said housing the container the gatherer and retainer for gathering and retaining drill bit cuttings, two lids for the said housing one covering the bottom and the other covering the top thereof, means for detachably securing the said lids in their respective locations, a'mechanism housed and contained within the said housing for rotation thereof, means for detachably securing the said mechanism to and in connection with internal rotary drill stem, means i for the installation of roller bearings within the said housing about the internal rotary drill stem above and below the point where the said mechanism is detachably secured to and in connection with the said drill stem, a rotary operating` block, means in the lower portion of the operating block for detachably securing external rotary drill stem thereto, means in the median portion of the operating block for detachably securing internal rotary drill stem thereto, means in the upper median portion of theoperating block for detachably securing the lower end portion of a shaft thereto, means about the top of the outwardly extending portion of the said operating block for the installation of roller bearings, a case, a rotary means incased within the case for rotating the rotary drilling mechanism of the apparatus the actuating power for which is propelled Within the said rotary oil well drilling apparatus, a rotary means incased within the case the actuating power for which is propelled therein, a housing within the case, means attached to the case internally thereof for supporting the housing, means attached to the housing for supporting the latter on the supporting means therefor attached internally to the case, means for detachably securing the supporting means of the housing to the supporting means therefor attached internally to the case, two lids for the said housing one covering the bottom and the other covering the top thereof. means for detachably securing the said lids in their respective locations, means for the installation of an electric motor or a series of electric motors for the actuation and rotation of the rotary drilling mechanism of the apparatus, a tubular spindle centrally and longitudinally of the said housing journaled in the lids of the housing, an extended lower end shaft portion of the said spindle for detachably securing a rotary operating block thereto, means about the lower end portion of the said shaft for detachably securing the latter to a rotary operating block, means within the lower end portion of the case for housing and guiding the upper portion of a rotary operating block, a lid covering the top of the case, means for detachably securing the lid to the case, a housing mounted on the lid of the case, means for detachably securing the bottom end of the housing to the lid of the case, two rings attached on the surface of the said housing near the top thereof, means for lowering and removing the drilling apparatus into and out of drilled hole, a. connection means about the top of the said housing for detachably securing a hose union thereon, a hose union detachably secured on theconnection means about the top of the housing for detachably securing the connection means of a hose therewith, means for detachably securing the said housing with a hose, a section of hose or tubing the upper portion of which is housed within the said housing, means for the installation of electric service wires from end to end of the said section of hose or tubing, means for connecting the said electric service wires above with electric service wires contained ina section of hose or tubing above thel said housing, means vwithin the said drilling apparatus for connecting the lower ends of the said electric service wires to an electric motor or motors contained within the said drilling apparatus, means for conveying power means into the drilling apparatus for actuating and rotating the rotary mechanism-of the said apparatus, a connection means about the lower` end of the section of hose or tubing contained within the drilling apparatus for connecting with the connection means of a ball and socket tube joint, a connection means at the top of the said section of hose or tubing for connecting with connection means of the end of a. hose or tubing, a ball andffsocket tub joint, a connection means thereforfby which the upper portion of the said tube joint is connected with the connection means of the hose or tubing in-Vv cased within the case, a connection means forv the said tube joint by which the latter is corrlower end portion of the case for housing andnected below with the connection means of a tube. a tube extending from lower end portion of the internal rotary drill stem to connection means of ball and socket tube joint, a connection means about the top of the said tube for connecting the tube with lower connection means of the said ball and socket tube joint, means for conveying water and other substances into and from drill hole.

4. In a rotary oil well drilling apparatus of the type specied, a rotary mechanism therefor. comprising two rotary drill stems one of which is containedwithin the other, means about the lower end portion of the said drill stems fordetachably securing rotary drill bit heads thereto, means about the lower end portion of the internal rotary drill stem f or detachably securing a roller bearing container thereon, means about the upper end portion of the said drill stems for detachably securing the drill stems to a rotary operating block, a gatherer, retainer and container for gathering and retaining drill bit cuttings, a reversible extension shaft the upper end portion of which is detachably secured to the lower end portion of internal rotary drill stem and the lower portion of which is detachably secured in connection with reversible expansion gears of a reversible expansion drill bit, means for operating the reversible extension shaft together with reversible expansion gearsA in connection therewith; means for operating reversible expansion gears which are in connection withreversible expansion drill bit, reversible expansion gears for reversible expansion of a reversible expansion drill bit, a rotary operating block, means inthe internal lower portion of the operating block for detachably securing external rotary drill stem thereto, means in the internal median .porc'tion of the operating block for detachably securing internal rotary drill stem thereto. means in the upper internal median portion of the operating block for detachably securing lower end portion of a shaft thereto, means in the top of the outguiding the upper portion of a rotary operating block, a lid covering the top of the case, a housing `within the case, means attached to the case internally thereof for supporting the housing, means attached to the housing for supporting the housing on the supporting means therefor attached internally to the case, means for detachably securing the supporting means of the Housing to the supporting means therefor at'- tached internally to the case, two lids for the said housing one covering the bottom and the other covering the top thereof, means for detachably securing the said lids in their .respective locations, a tubular spindle centrally and longitudinally of the said lhousing journaled in the lids of the housing, the extended lower end shaft portion of the said spindle for detachably securing a rotary operating block thereto, means for detachably securing the shaft of the said tubular spindle to a rotary operating block, meansv within the said housing for rotating the said spindle and shaft thereof together with the rotary operating block detachably secured to the latter, a housing mounted on the lid of the case, means for detachably securing'the bottom end of the housing to the lid of the case, two rings attached on the surface of the said housing near the top thereof, means for lowering and removing the drilling apparatus into and out of drilled hole, a connection means about the top of the said housing for detachably securing a hose union thereon, a hose union detachably secured on the connection means about the top of the housing for detachably securing the connection means of a hose therewith, means for detachably securing the said housing with ahose, a section of hose or tubing the upper portion of which is housed within the said housing, means for conveyingpower through the said section of hose or tubing into the case oi' the rotary oil well drilling apparatus for actuation and rotation of the rotary mechanism of the said drilling apparatus, a connection means about the lower end of the said hose or tubing for connecting with the connection means of a ball and socket tube Joint, a connection means at the top of the said section of hose or tubing for connecting with connection means of the end oi' a hose or tubing, means within the case for conveying power to the rotary mech.

anism of the said drilling apparatus from lower portion of hose or tubing incased therein,.a ball and socket tube joint, a connection means therefor by which the said tube joint is connected above with the connection means of the hose or tubing incased within the case, a connection EVERE'IT MARION LEWIS. 

